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Oman VAT Number Format Checker
Check that an Oman VAT identification number (VATIN) has the correct format — OM followed by 10 characters.
What is an Oman VAT number?
An Oman VAT identification number (VATIN) is the number the Oman Tax Authority issues when a business registers for VAT: OM followed by 10 characters, usually all digits — for example OM1100012379 for Bank Muscat SAOG. It is separate from the business’s tax card number and its commercial registration (CR) number.
Oman VATIN format
OM, nine digits and a final character.
(digit or X)
Example: OM1100012379 (Bank Muscat SAOG, as published in its own VAT FAQ).
- 12 characters: OM + 10 characters, no spaces.
- Ending in X: Some valid VATINs end in X. Our checker does not yet accept them; verify those with the Tax Authority.
- Format check only: This checker confirms the format. It does not query the Tax Authority, so it cannot confirm registration or show a name.
- Not a VATIN: A tax card number or CR number is a different identifier.
How to check an Oman VAT number
- 1 Find the VATIN on the supplier’s tax invoice or VAT registration certificate.
- 2 Enter it above. The checker confirms it has the correct format.
- 3 To confirm registration, use the Oman Tax Authority’s VATIN validation service on its tax portal.
- 4 Need the background on Omani tax IDs? Read our Oman tax ID guide.
Frequently Asked Questions
What is the format of an Oman VAT number?
OM followed by 10 characters — for example OM1100012379 for Bank Muscat SAOG. The last character appears to act as a check character (the Tax Authority has not published a check-digit rule) and is usually a digit, but some live numbers end in X.
How do I verify an Oman VATIN?
The Oman Tax Authority’s VATIN validation service on its tax portal lets you search by VATIN, tax card number or CR number. Our checker confirms the VATIN’s format only.
Is the VATIN the same as the tax card number or CR number?
No. The VATIN is issued by the Tax Authority on VAT registration; the tax card number is the taxpayer’s income tax registration; and the CR number is the commercial registration from the Ministry of Commerce, Industry and Investment Promotion. Bank Muscat, for example, has VATIN OM1100012379 and CR 1145738.
Can I recover VAT charged by an unregistered supplier?
No. The Tax Authority’s input tax guidance says VAT charged by a supplier that is not registered for VAT is not input tax — so checking a supplier’s VATIN protects your input tax claim.
What is the VAT rate in Oman?
The standard VAT rate in Oman is 5%, introduced in April 2021.
Do Omani VAT numbers end in X?
Some do — Oman Cement’s VATIN, for example, ends in X. The Tax Authority has not published why; it is consistent with a check character in which X represents 10. Our checker does not yet accept these.
Last reviewed: , against official sources.
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